Pitting Enhanced Fatigue in 7075 Aluminium Alloy

Swapna Dey; Amitava Basu Mallick; Indranil Chattoraj

doi:10.4028/www.scientific.net/AMR.117.43

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 117Pitting Enhanced Fatigue in 7075 Aluminium Alloy

Pitting Enhanced Fatigue in 7075 Aluminium Alloy

Abstract:

Pitting corrosion of two tempers (T6 and T73) of 7075 Aluminium alloy were quantified by digital image processing. The effect of pitting corrosion on fatigue life in 7075 Aluminium alloy in two aging conditions was studied. Pitting was found to be slightly more severe for T6 tempers compared to T73 tempers for different time of exposures. The fatigue lives of two tempers of 7075 Aluminium alloy at high peak stresses were compared in the uncorroded and pre-corroded (pitted) states. Absolute fatigue lives of T73 samples were much higher than that of T6 in the uncorroded as well as pre-corroded condition. The various crack initiation methodologies observed through fractographic analysis is discussed.

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Advanced Materials Research (Volume 117)

Pages:

43-48

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.117.43

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Online since:

June 2010

Authors:

Swapna Dey, Amitava Basu Mallick, Indranil Chattoraj

Keywords:

Aluminium Alloy, Crack Initiation, Fatigue Life, Pitting Corrosion

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References

[1] K. Jones and D.W. Hoeppner: Corros. Sci. Vol. 47 (2005) p.2185.

Google Scholar

[2] S.I. Rokhlin, J.Y. Kim, H. Nagy and B. Zoofan: Engg. Fract. Mech. Vol. 62 (1999) p.425.

Google Scholar

[3] M.L. Du, F.P. Chaing, S.V. Kagwade and C.R. Clayton: Int. J. fatigue Vol. 20 (1998) p.743.

Google Scholar

[4] D.L. DuQuesnay, P.R. Underhill and H.J. Britt: Int. J. Fatigue Vol. 25 (2003) p.371.

Google Scholar

[5] K.K. Sankaran, R. Perez and K.V. Jata: Mater. Sci. Engg. A Vol. 297 (2001) p.223.

Google Scholar

[6] P.S. Pao, C.R. Feng and S.J. Gill: Corrosion Vol. 56 (2000) p.1022.

Google Scholar

[7] T. Ghidini and C. Dalle Donne: Engg. Fract. Mech. Vol. 76 (2009) p.134.

Google Scholar

[8] K. Jones and D.W. Hoeppner: Corros. Sci. Vol. 47 (2005) p.2185.

Google Scholar

[9] K. Jones and D.W. Hoeppner: Fatigue Fract. Mech., ASTM STP 1480, R.E. Link, K.M. Nikbin (eds. ), ASTM international, Mayfield, PA, (2008) p.271.

Google Scholar

[10] G.H. Bray, R.J. Bucci, E.L. Colvin and M. Kulak, in: Effects of Environment on the Initiation of Crack Growth, ASTM STP 1298, ASTM, Philadelphia (1997) p.89.

Google Scholar

[11] S. Dey, M.K. Gunjan and I. Chattoraj, Corros. Sci. Vol. 50 (2008) p.2895.

Google Scholar